Sack holder



F. H. GILBERT.

SACK HOLDER.

APPLICATION FILED JUNE 2.1920.

1,402,227 Patented Jan. 3, 1922.

sereni? aan@ FRANK E. GILBERT, OF RIDG-EFIELD, WASHINGTON.

SACK HOLDER.

Specification of Letters Patent.

Patented Jan. 3, 1922.

Application led June 2, 1920. Serial No. 386,006.

To aZZ 'whom t may concern.:

Be it known that I, FRANK H. GILBERT, a citizen of the United States, and a resident of Ridgefield, county of Clarke, State of Washington, have invented a new and useful Improvement in Sack Holders, of which the following isa specification.

My invention has for its object the providing of a durable end eiiieient sack-holding mechanism which is composed of standard parts conveniently manufactured at reasonable cost, and which, furthermore, is adapted for being readily applied to hoppers of different sizes.

It is furthermore my object to provide simple means for supporting my sack holder from any vertical support and which means will hold the hopper in proper relation to such support.

I attain the above'specied features and others incidental thereto by the novel combination of parts Aconstructed and operating v as hereinafter described, and illustrated in the accompanying drawings. U

In the latter, Fig. 1 is a perspective illus'- trating a metal hopper provided with my sack-holding mechanism and supported as in practice from a suitable support;

Fig. 2 is a 'partial view on a larger scale, of the front of'V the hopper showing my sack-holding mechanism as arranged Vfor holding the sack;

Fig. 3 shows substantially a view like the preceding figure, except in this instance the sack-holding mechanism has been operated to release the sack;

Fig. 4l is a transverse section of a wall from which my sack holder is suspended, and ofthe hopper of my sack-holder and illustrates the means preferably provided by me for supporting the hopper in its proper position with regard to its support, so as to properly suspend thesack;

' Fig. 5 is a partial rear elevation of the hopper further illustrating said hopper sup'- porting device; and

Fig. 6 is a detail` showing a section of the front hopper wall and an edge view of the latch plate of my sack-holding mechanism 'pivoted to said wall.

a is ametal hopper provided on its opposite ends and its front with the parts constituting my sack-holding mechanism. The latter consists of bars b attached to said ends, and made with inturned ends c which are adapted to serve as journal pins (d) on which hollow aXles e are journaled. rlhe axles are provided with sack holding prongs fand an ear g serving as a crank element. To the front side of the hopper a is pivoted a latch-plate h provided with lips as z' (see Fig. 6) serving as spacing elements; the latch plate It is rotatable on a pin y' in a plane parallel with the adjacent side of the hopper from which it is spaced so that the links 7c, lo by which the chains Z, Z are connected with the latch-plate h may operate on the under side of the latter, thus being out of the way, and preventing any interference oi the parts. The latch-plate 7L is also made with an upturned lip m which serves as a handle for rotating the latch-plate against the tension of the spring n. The latter is fastened to the hopper at one end, as at o, and the opposite end being attached to a link p pivoted at g. 'Ihe .latch-plate is provided with a pin r which when the sackholding mechanism is in its Vsack releasing position serves to maintain the spring n in an operative state as illustrated in Fig. 8; without similar means the spring n would be liable to assume a position whichwould render the latch-plate 71, diiiicult to operate for restoring the sack holding means into their sack holding states'.

The chains Z, Z are connected by linke s, s with the crank elements g,' hence by using links as s, s

The chains Z, Z"run through guide elements t, t. When the parts of my sack holding mechanism are arranged as shown in Fig. 2, said mechanism is adapted for having a sack suspended therefrom. Note that the links 7c, 7c are located o n the opposite sidesV of the Vpivot pin jot the latch'- Aplate 7L, and that the chains Z, Z pull substantiaily in a straight horizontal line, thus imposing no work uponthe coil-spring n in holding the partsin their sack holding position. By seizing the handle m of the latch plate 72, and rotating the latter counterclockwise, the latch holding mechanism becomes arranged in its sack releasing position as illustrated.

In order to support the hopper in proper position relatively to the support from whichi it is suspended, I 'fastento the back wall u of the hopper a stifening board o on which are secured suspending straps w; and in the middle of the board o I hinge a prop on which is mount ed a bearing platey having a perpendicular ear at each side through which the inturned ends of the prop flexible connections connecting said crank m extends, and having a perpendicular ear y at the top through which a'rod a extends suspending by a chain 3 from the board tu On the rod is threaded a nut i1 by the adjustment of which the prop m is raised and lowered so as to properly support or prop up the hopper a, with regard to its support.

I claim:

l. ln a sack holder, a hopper, a pair' of shafts rotatably supported on the opposite ends thereof, sack-holding pins carried by said shafts, a crank-element on each shaft, a spring-controlled latch-plate pivoted on the hopper between the ends on which said shafts are `journaled, said latch-plate being' rotatable in a plane parallel with the adjacent side of the hopper, means spacing such latch-plate 'from saidfhopper side, lguides provided'on said hopper side at 'each end, flexible connections connecting said crank elements with said latch plate, said flexible connections passing through saidV guides, said flexible connections including links fastened to said crank elements, the points of attachment of said flexible connections to the latch platein one position' of the latter being so located as to be in'straight alinement with. the 'pivotal center of the latch; plate. f l 2. Ina sack holderya hopper,a pair of shafts rotatably supported on the opposite ends thereof, sack-holding pins carried by said shafts, a crank-element on each shaft, a spring-controlled latch-plate pivoted on the hopper between the ends onfwhich' said shafts are journaled, said latch-plate being rotatable in a plane parallel with the 'adjacent side of the hopper, means spacing Vsuch latch-plate fromlsaid hopperside, "guides provided on said hopper side at eachend, flexible" connections connecting said crank elements with said latch plate, said flexible connections passing through said guides, said flexible connections including links fas'- tene'd to said cran'k 'elements-,the points of attachment of said flexibleA connections to the latch plate being so located as to be in straight alinement with the pivotal center of the latch-plate in one'position of the latter, the ends of said flexible connections attached to said'latch-plate being located on the under side of the lattergand on sides of its pivot pin;

3,.,In a sack'holder, a hopper,'a pair of shafts 'rotatably supported on the opposite ends thereof, sack-holding pins Vc'arriedby said shafts,va crank-element on ea'ch shaft, a spring-controlled latch-plate pivoted on the "hopper between the'ends on which said shafts are journaled, said latch-plate being opposite rotatable in a plane parallel with the adjacent side of the hopper, means spacing such latch-,plate from said hopper side, guides provided on saidV hopper side at each end,

elements with said latch plate, said flexible connections passing through said guides, said flexible connections including` links fastened to said crank elements, the points of attachment of said flexible connections to the latch plate being` so located as to be in straight alinernent with the pivotal center of the latch-plate in one position of the latter, the ends of said flexible connections attached to said latch-plate being located on the underside of the latter and on opposite sides of its Vpivot pin, the latch plate beingadapted to overlie the flexible Vconnections in all positions of the latch plate.

4. In a sack holder, a hopper,`a pair Vof shafts rotatably supported 'on the opposite ends thereof, sack-holding pins carried by said shafts, a crank-elementon each shaft, a latch-plate pivoted on the hopperl between the ends on which said shafts-arejournaled, said latch-plate being rotatable -i-n a'plane parallel with the adjacent side of the hopper, guides provided on said hopper side at each end, flexible connectionsconnecting said crank elements with said latch-plate, said qflexible connections passing through said guides, a tension spring connected to said latch-plate serving to hold the sack holding'device in' their 'sack-holding position, means whereby saidV spring i's restrained to its active position during lthe'rotation of said latch-platewhile operating the sack holding means to releasethe sack.

-v Y5. InV a `sack holder, aho'pper, a pair of shafts rotatably supported on the'oppo'site ends thereof, sack-holding pins carried by said shafts,'a-crank-'element on each shaft, a latch-plate pivoted on the hopper between the ends von which said shafts are journaled, said latchplate being rotatable *in` a plane parallel with the adjacent side of the hopper, meansV spacing such latch-plate from said hopper side, guides provided on said hopper side at each end, flexible connectionsv connecting said crank elements with 'said latchplate, said flexible connectionsY passing through said guides, said flexibleY connections including links fastened to said crank elements, the points of attachment, 'of said flexible connections to the latch-plate being' so located as to be in straight alinement with the pivotal centerof the latch-plate in one positionv ofthe latter', the'ends ofsaid flexible connections attachedto said latch-plate being located on theunde'r side of the latter and onopposite-sides'ofits pivot pin,'a corn4 pression spring connected to said latch-plate serving to hold the sack holding device Ain their sack-holding position, means whereby ,said spring is restrained to 'its active posi,

tion duringrthe rotation'of said latch-plete 'while operating the sackholding means to release the sack.- A Y v 6.' In a.' sackholder, a hopper, al pair of shafts rotatably supported on the opposite ends thereof, a crank-element on each shaft, a latch-plate pivoted on the hopper between the ends on Which said shafts are journaled, said latch-plate being rotatable in a plane parallel with the adjacent side of the hopper, means spacing such latch-plate from said hopper side, flexibleconnections connecting said crank elements with said latch plate, said flexible connections passing through said guides, the ends of said flexible connections attached to said latch-plate being located on the underside of the latter and on opposite sides of its pivot pin.

7. In a sack holder, a hopper, a pair of shafts rotatably supported on the opposite ends thereof, a crank element on each shaft,

a latch-plate pivoted on the hopper between the ends on which said shafts are journaled,

said latch-plate being rotatable in a plane 20 ble connections attached to said latch-plate Y being located on the underside of the latter and on opposite sides of its pivot pin, the latch-plate being adapted to overlie the flexible connections in all positions of the latch plate.

FRANK H. GILBERT. 

